磁场电流 meaning in English

fiel current
field current

Exhibits include " the giant motor " , " the principle behind the motor " , and " making a magnet rotate by using electric current " , " the generator produces electricity " and " the magnet within the coil " . getting to grips with electric current exhibit include " when the current flows , things heat up ! " ,
展品包括电流通过时会产生热电流通过时会产生磁场电流通过时会造成电解电路必须闭合，才有电流通过电路是导电体，才有电流通过电器接上电池，才有电流通过及小心短路